{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.176-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.85-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.19.10-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  netfilter: conntrack: add missing netlink policy validations  Hyunwoo Kim reports out-of-bounds access in sctp and ctnetlink.  These attributes are used by the kernel without any validation. Extend the netlink policies accordingly.  Quoting the reporter:   nlattr_to_sctp() assigns the user-supplied CTA_PROTOINFO_SCTP_STATE   value directly to ct-\u003eproto.sctp.state without checking that it is   within the valid range. [..]    and: ... with exp-\u003edir = 100, the access at   ct-\u003emaster-\u003etuplehash[100] reads 5600 bytes past the start of a   320-byte nf_conn object, causing a slab-out-of-bounds read confirmed by   UBSAN.",
  "id": "DEBIAN-CVE-2026-31407",
  "modified": "2026-09-14T16:47:42.835513344Z",
  "published": "2026-04-06T08:16:38.623Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-31407"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-31407"
  ]
}